A rabbi is first and foremost a teacher. But a rabbi is also the spiritual leader of the congregation, leading services, officiating at weddings and funerals, etc.
The Torah is kept in the ark, a box or house for the Torah scrolls. The ark is usually behind or near the bima ("stage") where the rabbi, cantor, and readers stand.
For prayer and community.
sinagoga
Synagogues A synagouge
Bar mitzvahs are held at synagogues.
It is where the Bar Mitzvah ceremony takes place.
Originally, it was a rabbi, a rabbi, and a rabbi walk into a bar. . .
Rabbis. Here are a few examples from the Talmud. Rabbi Yochanan ben Zakkai, Rabbi Yonatan ben Uziel, Chanina ben Dosa, Bava ben Buta, Shimon ben Hillel, Rabbi Eliezer, Rabbi Yehoshua, Rabbi Yossi haKohen, Rabbi Shimon ben Netanel, Rabbi Elazar ben Arakh, Rabbi Yochanan ben Nuri, Rabbi Akiva, Rabbi Nechuniah, Rabbi Nachum Gamzu, Rabbi Yossi Glili, Rabbi Honi Me'agel, Rabbi Abba Shaul, and hundreds of others. Each of these had large groups of disciples.
Rabbi Aaron Teitelbaum and Rabbi Zalman Leib Teitelbaum
A rabbi is a teacher.
A Chief Rabbi
The rabbi of France